coretextfont.h

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#ifndef ION_TEXT_CORETEXTFONT_H_
#define ION_TEXT_CORETEXTFONT_H_

#include <memory>
#include <string>

#include "ion/math/vector.h"
#include "ion/text/font.h"

namespace ion {
namespace text {

class ION_API CoreTextFont : public Font {
 public:
  CoreTextFont(const std::string& name, size_t size_in_pixels,
               size_t sdf_padding, const void* data, size_t data_size);

  std::string GetCTFontName() const;

  GlyphIndex GetDefaultGlyphForChar(CharIndex char_index) const override;
  const Layout BuildLayout(const std::string& text,
                           const LayoutOptions& options) const override;
  void AddFallbackFont(const FontPtr& fallback) override;

 protected:
  ~CoreTextFont() override;

  bool LoadGlyphGrid(GlyphIndex glyph_index,
                     GlyphGrid* glyph_grid) const override;

 private:
  class Helper;
  std::unique_ptr<Helper> helper_;
};

typedef base::ReferentPtr<CoreTextFont>::Type CoreTextFontPtr;

}  // namespace text
}  // namespace ion

#endif  // ION_TEXT_CORETEXTFONT_H_